Question

Roger Ginde is developing a program in supply chain management certification for managers. Ginde has listed a number of activities that must be completed before a training program of this nature could be conducted. The activities, immediate predecessors, and times appear in the accompanying table: 

Activity	Immediate Predecessor(s)	Time (days)
A	-	4
B	-	6
C	-	2
D	B	10
E	A, D	3
F	C	5
G	E, F	10

This exercise contains only parts b, c, and d. 

b) The critical activities for the leadership training program development project are B-D-E-G 

c) The project length for the leadership training program development project = 29 days. 

d) Slack time for each of the activities is: 

Activity	Slack Time
A	12
B	0
C

Answer 1

b) The critical activities for this leadership training program development project are B-D-E-G. These are the activities with no slack. These activities are shown in below mentioned network diagram & are connected by dark arrows.

Early Start	Activity	Early Finish
Late Start	Duration	Late Finish

c) The project length for the leadership training program development project is 29 days, as we can see in the above mentioned diagram.

d) Slack time for the activities is:

Activity	Slack time
A	12
B	0
C	12
D	0
E	0
F	12
G	0

We can calculate the slack time for activities with the help of the diagram, slack time can be calculated by subtracting early finish from late finish time or by subtracting early start from late start time. Early start, late start, early finish, late finish times for each of the activities are mentioned in the diagram.